twitter has publicly promised to only use the patents defensively. the company will also require permission from its employees if it wants to take the offensive and sue another company over intellectual property. >>> comcast customers may have noticed their internet service has gotten a little quicker. they've increased the speeds of services for nearly all customers in california. the upgrade applies to customers with performance, blast, or express 50 service plans. however, comcast is not upgrading the speeds of its two low end plans. >>> i miss my school. i miss my teachers. i really want to be over there. >> a 9-year-old boy barred from return home. the campaign to help bring him back to the bay area. >>> you're really lucky there's so many police in this room right now. >> but first, a teenage killer sentenced. but not before doing something that startled everyone in court. >>> developing news from the north bay where an accident has left a fedex truck dangling from the roadway. for your first day? yeah. ♪ dad: you'll be fine, ok? girl: ok. da